[gemini deep research has some ideas on what you can do with blood samples!]
eg Blood Analysis via Plate Reader
ELISAs - PNPP, ABTS, OPD, TMB
Protein assays - Bradford, BCA, Lowry
Cell-based assays - MTT, XTT, Cell density
Despite its compact form, the Absorbance 96 delivers precise and accurate results at an affordable price. The solid state design enables simultaneous signal detection, resulting in extremely fast photometric measurements. A range of 400–1000 nm allows for a wide variety of wavelength combinations for both endpoint and kinetic assays.